JPS6340137Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a steel fish reef that reduces the number of manufacturing steps and materials used.

As shown in Fig. 1 (plan view) and Fig. 2 (side view), conventional steel reefs are made by welding outer corner plates a, which are two plates welded at right angles, to aggregates e and f. Alternatively, the outer corner plate a is bent at right angles in advance and assembled by welding it to the aggregates e and f, but the former method of welding the two plates is When the height of the plate reaches a maximum of 5 to 10 m, the welding length becomes longer and more man-hours are required.The latter method of bending a single plate requires a large press and mold, which causes problems in terms of equipment and construction time. have

In addition, the plate b arranged on the diagonal vertical plane of the fish reef is trapezoidal, so it is difficult to cut accurately and the product yield is low. Furthermore, since the trapezoidal plate b is too close to the corner, the center part c seen from the side is too wide apart from the horizontal direction. The shielding effect of the current (which is said to be effective in attracting fish) becomes worse.

Furthermore, since the lower part d of the fish reef is made of concrete blocks and is large, measuring 6 to 10 m on a side, it must be constructed at the submergence site during assembly, and for this purpose, formwork must be constructed on site. With,
Because it is necessary to provide a means to obtain the necessary strength from the concrete, it takes a longer time than assembling other parts. Furthermore, if bolts are used to connect the upper and lower sections c, there is a risk that the bolts will break due to corrosion by seawater, so the connection must be embedded in concrete.

This invention was made in order to solve the above-mentioned problems of the prior art, and is provided with a face plate at each corner of the frame assembled in the shape of a truncated pyramid, spaced apart from the pillars constituting the frame. are fixed, a lower face plate is fixed between the face plates fixed to one opposing surface of the lower part of the framework, and an upper face plate is fixed between the face plates fixed to the other opposing surface of the upper part of the framework. A pair of lower inner surfaces is vertically fixed to the lower part of the central portion of the skeleton on one diagonal line, and the upper part of the central portion of the skeleton is
A pair of upper inner surfaces are vertically fixed on the other diagonal, and a base material is horizontally fixed to the lower part of the frame.

One aspect of this invention will be explained with reference to the drawings.

3 is a front view of one embodiment of the invention, FIG. 4 is a side view of the same, FIG. 5 is a sectional view taken along line AA in FIG. 3, and FIG. 6 is a sectional view taken along line BB in FIG. 3. A sectional view, FIG. 7 is a view taken along arrow C in FIG. 3, and FIG. 8 is a view taken along arrow D in FIG. 5.
D sectional view, FIG. 9 shows the EE sectional view of FIG.

The fish reef of this invention has four pillars 1, an upper horizontal member 2, an intermediate horizontal member 3, an upper diagonal member 4, an intermediate diagonal member 5, a lower diagonal member 5', and a diagonal diagonal member 5''. It is assembled to form a pyramid-shaped frame S, and a base material 6 made of H-beam steel or the like is fixed to the lower part of the column 1.The four corners of the frame S are A face plate 7 with a lightening hole 7' is provided over the entire length of the column 1 at a distance l from the column 1, and the upper end of the face plate 7 is connected to the upper horizontal member 2.
The middle part is welded to the intermediate horizontal member 3, and the lower end part is welded to the base material 6. Furthermore, a pair of rectangular lower face plates 8 are fixed facing each other between one of the intermediate horizontal members 3 and the base member 6 (see FIGS. 1 and 3). Furthermore, a pair of rectangular upper face plates 9 are fixed facing each other between the other upper horizontal member 2 and the intermediate horizontal member 3 that face each other on the side where the face plate 8 is not provided (see Fig. 2). and Figure 4).
A central vertical member 15 is provided at the center of the frame S for hoisting and setting down at one point.

Furthermore, two rectangular lower inner surfaces 10 are fixed between the intermediate diagonal member 5 and the lower diagonal member 5' at the center of the frame S (see FIGS. 5 and 8), and similarly the upper Two rectangular upper inner surfaces 11 are fixed to the diagonal member 4 and the intermediate diagonal member 5 (see FIGS. 6 and 9). 12 is a corner reinforcement material, 1
3 is a claw for preventing slipping, and 14 is a weight provided as necessary.

According to the fish reef of this invention, the following effects are brought about. That is, the upwelling flow generated by the face plates 7, 8, 9, 10, and 11 makes it easy to catch fish. This is because some species of fish have the property of moving upward when their direction of movement is blocked by a water flow.

Since the face plates 7, 8, 9, 10, and 11 are welded to each aggregate in the width direction, the weld length is short, and in particular, the face plate 7 is not welded to the column 1 in the longitudinal direction. Moreover, since it is arranged with a distance from the support column 1, there is no need to weld the two face plates together in the longitudinal direction or press bend them at all.

Since the face plates 8, 9, 10, and 11 are rectangular, they can be easily removed and the product yield is good.

Since the face plates 7, 8, 9, 10, and 11 are arranged to block the flow with appropriate gaps when viewed from any horizontal direction, it is possible to generate upwelling flow more effectively.

Since the base material 6 is made of H-shaped steel, it can be assembled more easily than conventional concrete, and the sliding resistance due to lack of weight can be compensated for by the weights 14 and claws 13.

[Brief explanation of the drawing]

Figures 1 and 2 are a plan view and a side view of a conventional steel reef, Figure 3 is a front view of this invention, and Figure 4 is a front view of this invention.
The figure is a side view, FIG. 5 is a sectional view taken along line A-A in FIG. 3, FIG. 6 is a sectional view taken along line B-B in FIG. 3, and FIG. 7 is a view taken along arrow C in FIG. , FIG. 8 is D- in FIG.
D sectional view and FIG. 9 are EE sectional views of FIG. 5. In the drawings, 1... Support column, 2... Upper horizontal member, 3... Middle horizontal member, 4... Upper diagonal member, 5...
...Middle diagonal member, 5'...Lower diagonal member, 5''...Diagonal diagonal member, 6...Base material, 7...Face plate, 8...Lower face plate, 9...Upper face plate, 10...Lower inside Face plate, 11
... Upper inner surface plate, 12 ... Reinforcement material, 13 ... Claw,
14... Weight, 15... Center vertical member.

Claims (1)

[Scope of utility model registration request] A face plate is fixed to each corner of the frame assembled in the shape of a truncated pyramid at a distance from the pillars constituting the frame, and a lower part is fixed between the face plates fixed to one opposing surface of the lower part of the frame. A face plate is fixed, an upper face plate is fixed between the face plates fixed to the other opposing surface of the upper part of the frame, and a pair of lower inner face plates is provided on one diagonal at the lower part of the central part of the frame. is fixed vertically, and at the top of the central part of the framework,
A steel fish reef characterized in that a pair of upper inner surfaces are fixed vertically on the other diagonal, and a base material is fixed horizontally to the lower part of the framework.